Results 31 to 40 of about 5,866,044 (229)

Influence of Intermediate Principal Stress on Plastic Flow

Transactions of the Japan Society of Mechanical Engineers, 1959
Let σ1, σ2 and σ3 (σ1>σ2>σ3) be the principal stresses, and σ3=0. Taking σ1 and σ2 as the axes, the criterion of plastic flow is not expressed by a smooth curve by the authors' theory, but a curve composed of two straight lines which intersect at σ1=4σ2 in the range between tension and pure shear. Experiments were carried out.
NAKANISHI, Fujio, SATO, Yasuo
openaire   +3 more sources

Simple approach for solution of the quasi-plane-strain problem in a circular tunnel in a strain-softening rock mass considering the out-of-plane stress effect

Underground Space, 2020
The out-of-plane stress is sometimes the major or intermediate principal stress in a circular tunnel opening. The influences of the out-of-plane stress and axial strain are often neglected in the stability analyses of tunnel excavation, which can induce ...
Jinfeng Zou, Lu Liu, Mingyao Xia
doaj   +1 more source

Triaxial stress and failure modes in hydrothermal mineral systems [PDF]

, 2023
Rock mechanics experiments show that the magnitude of the intermediate principal stress significantly affects rock failure. Since triaxial stress states (no principal stress is zero) are ubiquitous in the crust, and polyaxial axial states (all three ...
Blenkinsop, T. G., T. G. Blenkinsop
core   +1 more source

Study of intermediate principal stress effect on progressive damage and permeability characteristics of unloading sandstone

Meikuang Anquan
In order to investigate the effect of intermediate principal stress on the progressive damage and permeability characteristics of unloading sandstone, the unloading test was carried out under different intermediate principal stress conditions based on a ...
Jiahui DU, Wenpu LI, Yue CHANG, Ze WANG, Tao WANG   +4 more
doaj   +1 more source

Damaged constitutive model of frozen sand under the influence of intermediate principal stress

, 2020
Artificial freezing is a commonly used method for stopping water and providing temporary support during the excavation of saturated sand. This study on the damage characteristics of frozen soil lays the foundation for the analysis of the mechanical ...
Xuan, PAN, Zhaoming, YAO, Shuang, LIU, Shilong, MA   +3 more
core   +1 more source

Experimental study on failure evolution mechanism of clastic rock considering cementation and intermediate principal stress

, 2023
The study of clastic rock failure evolution under true triaxial stress is an important research topic; however, it is rarely studied systematically due to the limitation of monitoring technology.
Yangyi Zhou, Xia-Ting Feng, Xiaojun Yu, Feiyan Wang   +3 more
core   +1 more source

Mechanical properties and constitutive model of artificial frozen sandy soils under true triaxial stress state conditions

Case Studies in Thermal Engineering
Triaxial compression tests were conducted on frozen sandy soils under a constant minimum principal stress (σ3 = 1.6 MPa) and various intermediate principal stresses (σ2 = 1.6, 3.4, 5.2, 7.0, 8.8, 9.8 MPa).
Kun Huang, Haoran Tang, Dongdong Ma, Hongpeng Zhang, Zhaolin Li, Kai Huang, Jian Lin   +6 more
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk, Sebastian Michaelis, Michaela Döring, Thomas Eichholz, Ursula Holzer, Martin Ebinger, Tim Flaadt, Rupert Handgretinger, Peter Lang, Jan Frederic Weller, Markus Mezger   +10 more
wiley   +1 more source

Particle Flow Simulation of Failure Process of Defective Sandstone under Different Intermediate Principal Stress under True Triaxial Action

, 2022
In order to explore the mechanical response characteristics of fractured sandstone under true triaxial different medium principal stresses, matdem particle flow software was used to study the mechanical response characteristics, fracture mechanism and ...
Ziyi Wang, Heng Ding, Chang Luo, Hengyu Su, Shu Ma   +4 more
core   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source